نتایج جستجو برای: ovarian hormones
تعداد نتایج: 150279 فیلتر نتایج به سال:
Ovarian follicle development is a complex process that begins with the establishment of what is thought to be a finite pool of primordial follicles and culminates in either the atretic degradation of the follicle or the release of a mature oocyte for fertilization. This review highlights the many advances made in understanding these events using transgenic mouse models. Specifically, this revie...
Ovarian cancer is associated with the highest mortality rate among gynaecological malignancies (Hennessy et al., 2009). There are over 205, 000 new cases and 125, 000 deaths annually from ovarian cancer (Jemal et al., 2011). Endometrial cancer is the fourth most common cancer among women and the most common gynecological cancer in the USA (Jemal et al., 2009). Multiple lines of evidence support...
Greater than 95% of ovarian cancers originate in the epithelial cells on the surface of the ovary. The current study investigates the expression and action of transforming growth factor alpha (TGFalpha) in ovarian surface epithelium (OSE) and the underlying stroma in both normal and tumorigenic ovarian tissues. Normal bovine ovaries are used in the current study as a model system to investigate...
tumorigenesis by modifying endocrine status, possibly by in terfering with some aspect of ovarian or pituitary function. The inhibitory nature of either a deprival or an excess of ovarian and/or hypophysial hormone(s) on mammary carcinogenesis is well documented (4). However, it has been reported that retinyl acetate inhibits mammary carcinogenesis to a greater extent in the presence of the inh...
neonatal ovarian cysts (noc) are usually self-limiting structures, however, large or complex cysts may lead to severe complications. unfortunately, no standard guidelines have been introduced for the management, treatment and follow-up of these cysts. in this report, we aimed to introduce a very large noc without any pre- and post-natal complications. a 30 year-old mother, gravida 2, para 2, wi...
Many changes of female reproductive system are based on the vascular activity and blood flow. In ovarian follicular development, re-anastomosis is critical and permits cells and oocytes to utilize nutrients as well as the hormones. Moreover, it plays a main role in corpus luteum formation. Female reproductive system undergoes several angiogenesis programs which are considered essential in order...
In this study, five carp pituitary glands were collected and dispersed enzymatically and mechanically.Then, the cells were cultivated as monolayer in MEM (minimum essential medium Eagle). The culture mediawere collected after 72 h and frozen at -20°C. Carp ovarian follicles also were separated mechanically andincubated in BSS (basic salt solution) Cortland medium in 24-well microplates for 48 h...
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